#coding:utf8
'''
Created on 2017年8月6日

@author: SimonTeam
'''
from bs4 import BeautifulSoup
import re
import urlparse



class HtmlParser(object):
    

    def _get_new_data(self, page_url, soup):
        res_data = {}
        
        res_data['url'] = page_url
        
        #<dd class="lemmaWgt-lemmaTitle-title"><h1>Python</h1></dd>
        title_node = soup.find('dd', class_="lemmaWgt-lemmaTitle-title").find("h1")
        res_data['title'] = title_node.get_text()
        
        
        #<div class="lemma-summary" label-module="lemmaSummary"></div>
        summary_node = soup.find('div', class_="lemma-summary")
        res_data['summary'] = summary_node.get_text()
        
        return res_data
    
    
    def _get_new_urls(self, page_url, soup):
        new_urls = set()
        
        #<a target="_blank" href="/item/%E8%87%AA%E7%94%B1%E8%BD%AF%E4%BB%B6">自由软件</a>
        links = soup.find_all('a', href=re.compile(r"/item/[\u4e00-\u9fa5]"))
        for link in links:
            new_url = link['href']
            new_full_url = urlparse.urljoin(page_url, new_url)
            new_urls.add(new_full_url)
        return new_urls
    
    
    def parse(self, page_url, html_content):
        if page_url is None or html_content is None:
            return 
        
        soup = BeautifulSoup(html_content, 'html.parser', from_encoding='utf-8')
        new_urls = self._get_new_urls(page_url, soup)
        new_data = self._get_new_data(page_url, soup)
        
        return new_urls, new_data
    
    
    
    



